https://issues.apache.org/bugzilla/show_bug.cgi?id=54440
Bug ID: 54440
Summary: TagPluginManager.init() throws NPE when used in Ant
<jasper> task
Product: Tomcat 7
Version: 7.0.35
Hardware: Macintosh
Status: NEW
Severity: normal
Priority: P2
Component: Jasper
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
In 7.0.35, I see the following NPE when compiling JSPX files via the <jasper>
Ant task:
[jasper] java.lang.NullPointerException
[jasper] at
org.apache.jasper.compiler.TagPluginManager.init(TagPluginManager.java:83)
[jasper] at
org.apache.jasper.compiler.TagPluginManager.apply(TagPluginManager.java:57)
[jasper] at
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:240)
[jasper] at
org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
[jasper] at org.apache.jasper.JspC.processFile(JspC.java:1179)
[jasper] at org.apache.jasper.JspC.execute(JspC.java:1329)
[jasper] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
[jasper] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[jasper] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[jasper] at java.lang.reflect.Method.invoke(Method.java:601)
[jasper] at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[jasper] at org.apache.tools.ant.Task.perform(Task.java:348)
[jasper] at org.apache.tools.ant.Target.execute(Target.java:390)
[jasper] at org.apache.tools.ant.Target.performTasks(Target.java:411)
[jasper] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
[jasper] at
org.apache.tools.ant.Project.executeTarget(Project.java:1368)
[jasper] at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[jasper] at
org.apache.tools.ant.Project.executeTargets(Project.java:1251)
[jasper] at org.apache.tools.ant.Main.runBuild(Main.java:809)
[jasper] at org.apache.tools.ant.Main.startAnt(Main.java:217)
[jasper] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
[jasper] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
This didn't happen in 7.0.34.
Given the line and change from 7.0.34
(http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/jasper/compiler/TagPluginManager.java?r1=1402119&r2=1431228&diff_format=h)
I assume that in...
urls = ctxt.getClassLoader().getResources(
84 META_INF_JASPER_TAG_PLUGINS_XML);
the ClassLoader is null, since ctxt was used here before and evidently not
null.
Fall back to Thread.currentThread().getContextClassLoader() in this case?
My Ant snippet:
<import file="${tomcat.home}/bin/catalina-tasks.xml"/>
...
<jasper validateXml="false"
failonerror="true"
listerrors="true"
trimspaces="true"
uriroot="${module.web.basedir}/docs"
outputDir="${module.web.basedir}/gen"
package="*****"
xpoweredBy="false"/>
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